Unit 4 Section3-4复习与训练-2024-2025学年沪教版英语七年级上册

7A Unit 4 The Earth Section 3 & 4 复习与训练 Part I 教材复习 ( Air ) （1） What is the text？ （2） What is the feature of a poem? （3） We know that air is very important to us. What kinds of problems can affect(影响) the quality of our air? Write 30words or more. _________________________________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ ( Wind ) （1） Why can clouds move? （2） What can tell us wind’s direction? （3） What can we use the wind to do? ( Saihanba: turning de sert into forest ) Saihanba is a forest park in 1. north of Hebei. It is about 400 km from Beijing. For 2. (hundred)of years, the emperors went there to hunt. But in the 1800s, things began to change. There 3. (be) forest fires and wars, and people cut down many trees. Saihanba 4. (slow) turned into a desert. 5. the forest disappeared, there were terrible sandstorms in the Beijing area. In the early 1960s, a group of scientists travelled to Saihanba 6. (find) a solution. They found an old 7. (tree) in the middle of the desert. “Maybe we can still plant trees here,” they thought. In1962, the first tree planters arrived in Saihanba. The cold and dry weather made their work very 8. (difficulty), and strong winds blew away many young trees. In winter, it got as cold as -40℃ . Three generations of forest workers continued the hard work. Thanks to them, Saihanba is green again. It is today the 9. (world) biggest man-made forest. There are hundreds of millions of trees there. The forest helps provide the capital 10. clean water, and there are fewer sandstorms in the Beijing area now. ( Writing 词汇积累 ) What’s on Earth？ 高耸的山脉 蓝色的海洋 美丽的河流 可爱的动物 矿产资源 植物 陆地 森林 No. Problems Solutions 1 global warming 2 waste water 3 endangered wildlife 4 sandstorms 5 too many plastic bags 6 burn oil and gas to make energy 7 fewer fish in the sea 8 fewer trees on the land 9 land pollution ( Writing 句子积累 ) 1. 正确表达因果关系: 所以 2. 正确表达句型: 如此.. 以至于... 3. 提建议句型: 通过某种方式做某事 4. 提建议句型: 应该做某事... 以便于... 5. 提建议句型: 做某事是一个好主意 … 6. 关于意义句型: 不仅...而且... 7. 关于意义句型: 做某事是某人的责任 8. 关于意义句型: 如果我们尽最大努力， 我们将 … Writing任务 假如你是李辉， 下周是“环境保护周”， 为了让同学们认识到地球的重要性， 以及帮助同学们思考如何保护我们 的地球， 现在学校的青少年论坛正在征集帖子， 希望大家踊跃投稿。 要求： 1. 陈述地球上存在的资源； 2. 列举地球面临的环境问题； 3. 阐述我们应该如何保护地球。 字数在 80-100 之间， 不得出现真实的个人信息， 可适当增添细节使行文连贯。 Protect the Earth The Earth is a beautiful planet. There are many places on Earth, such as fields and mountains, rivers and seas, forests and deserts. This beautiful planet is our only home. However, we are harming the Earth in many ways. For example, every year, people catch a lot of fish so there are fewer and fewer fish in the sea. People use so many dangerous farm chemicals that there is less and less clean groundwater. We only have one Earth, so we have to protect it. Planting trees is a good idea to reduce global warming. We will have less and less clean water to drink, so it is time for us to save water. We can reduce air pollution by riding bicycles. Let's do something to make our home a better world from now on! Part II 拓展阅读 A Keeping the seashore safe Have you ever heard of a “shorekeeper (海岸卫士)”? Is it a job for humans, like a zookeeper? Actually, it is a job for a special kind of forest – the mangrove forest. In China, we call it “hongshulin” or “red forest” . Let’s go into a mangrove forest to have a look. They grow near shorelines (海岸线). They separate (分隔) the land from the sea. This way, they protect the land from strong winds and waves. Trees stand like soldiers, with shorter ones standing at the front and taller ones at the back. When typhoons come, they protect the villages. Like other trees, mangrove trees take in CO2 to make oxygen. They are helping to slow down climate change on Earth for human. Mangrove trees don’t have red leaves or flowers. They are green. But they have special bark (树皮). Their bark can be used to make red dyes (染料). The bark breathes through pores (气孔). The pores can close during high tide (涨潮). This way, the tree doesn’t drown (淹死). The roots can grow in salty water. They are not easy to get through. They make great homes for baby sea animals, like baby lobsters (小龙虾), baby turtles and baby fish. They can hide there from big animals. 1. What is the effect (作用) of asking the two questions at the beginning? A. To explain the shorekeeper. B. To give suggestions. C. To lead in the topic. D. To compare (对比) a shorekeeper with a zookeeper. 2. What is the main idea of Paragraph 3? A. Where mangrove trees are grown. B. How mangrove forest helps human. C. Introduce the bark and how it breathes. D. Introduce the function of the roots. 3. What do we know about mangrove trees? A. They are one of the oldest trees. B. They mainly breathe through roots. C. They won’t easily die in salty water. D. They may drown during high tide. 4. In which part of the magazine can you probably find this passage? A. Education. B. Nature. C. Sports. D. Technology. B As we all know, the Earth is very important to us. 1. . What should we do to save it? 2. . Everything people do, such as eating, watering plants, heating homes and driving cars, needs a lot of resources (资源). If we think about using fewer resources in our everyday life, it’ll be sure to help save the Earth. Drive a smaller car. Of course, a bigger car usually makes you comfortable and excited. But that means more waste which will make the Earth in bigger danger. 3. . Saving the Earth doesn’t just have to do with adults. Children around the world may do many helpful things. For example, you may ask your kids to turn off lights or any other electrical appliance in the house when not in use. Instead of spending money on new toys, try letting the kids in the neighborhood exchange toys with each other or give away old toys to others. Ask children to use cloth towels (毛巾) to clean up things instead of using paper towels. 4. . Teach children where to throw away rubbish and if possible, teach your kids to pick up other people’s rubbish and put it away. All in all, it is everyone’s duty to protect and save the Earth. A. So when you want a new car, think of the Earth first. B. People must not buy a bigger car. C. However, people are polluting the planet. D. Consume (消耗) less. E. This will need less paper and help to save trees. 3 学科网（北京）股份有限公司 $$